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VMware ESXi

VMware ESXi

Overview

What is VMware ESXi?

A bare-metal hypervisor that installs directly onto a physical server. With direct access to and control of underlying resources, VMware ESXi partitions hardware to consolidate applications and cut costs.

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Recent Reviews

TrustRadius Insights

Powerful Tool for Managing VMs: Users consistently praise VMware ESXi as a powerful tool for managing a large number of virtual machines, …
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VMware ESXI

8 out of 10
April 07, 2022
VMware Esxi is very good product. Which helps people to virtualize the environment or data center. I am using Exsi for last 5 years. …
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A class above the rest

10 out of 10
April 04, 2022
Incentivized
We use ESXi in our organization for our virtualized workloads. ESXi provides a solution for growing organizations that have way too much …
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Awards

Products that are considered exceptional by their customers based on a variety of criteria win TrustRadius awards. Learn more about the types of TrustRadius awards to make the best purchase decision. More about TrustRadius Awards

Popular Features

View all 5 features
  • Live virtual machine migration (115)
    9.3
    93%
  • Management console (127)
    8.8
    88%
  • Virtual machine automated provisioning (115)
    8.5
    85%
  • Hypervisor-level security (116)
    8.3
    83%

Reviewer Pros & Cons

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Pricing

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N/A
Unavailable

What is VMware ESXi?

A bare-metal hypervisor that installs directly onto a physical server. With direct access to and control of underlying resources, VMware ESXi partitions hardware to consolidate applications and cut costs.

Entry-level set up fee?

  • No setup fee

Offerings

  • Free Trial
  • Free/Freemium Version
  • Premium Consulting/Integration Services

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What is VMware vSphere?

An enterprise workload platform, vSphere is used to improve the performance for a data center. It is used to boost operational efficiency, supercharge workload performance, and accelerate innovation.

Sorry, this product's description is unavailable

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Product Demos

VMware ESXi 5.1 Install & Configure In Oracle Virtual Box

YouTube
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Features

Server Virtualization

Server virtualization allows multiple operating systems to be run completely independently on a single server

8.7
Avg 8.3
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Product Details

What is VMware ESXi?

A bare-metal hypervisor that installs directly onto a physical server. With direct access to and control of underlying resources, VMware ESXi partitions hardware to consolidate applications and cut costs.

ESXi is used to:

  • Consolidate hardware for higher capacity utilization.
  • Increase performance for a competitive edge.
  • Streamline IT administration through centralized management.
  • Reduce CapEx and OpEx.
  • Minimize hardware resources needed to run the hypervisor, boosting efficiency.

VMware ESXi Integrations

VMware ESXi Technical Details

Deployment TypesSoftware as a Service (SaaS), Cloud, or Web-Based
Operating SystemsUnspecified
Mobile ApplicationNo

Frequently Asked Questions

A bare-metal hypervisor that installs directly onto a physical server. With direct access to and control of underlying resources, VMware ESXi partitions hardware to consolidate applications and cut costs.

Reviewers rate Live virtual machine migration highest, with a score of 9.3.

The most common users of VMware ESXi are from Mid-sized Companies (51-1,000 employees).
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Comparisons

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Reviews and Ratings

(805)

Community Insights

TrustRadius Insights are summaries of user sentiment data from TrustRadius reviews and, when necessary, 3rd-party data sources. Have feedback on this content? Let us know!

Powerful Tool for Managing VMs: Users consistently praise VMware ESXi as a powerful tool for managing a large number of virtual machines, with easy management of individual VM settings and configurations. Several reviewers have highlighted this aspect, emphasizing how it simplifies their virtualization workflows and enhances overall efficiency.

Cost Reduction Benefits: Many users appreciate the cost reduction benefits offered by VMware ESXi. It minimizes the need for physical servers and reduces storage footprint, resulting in electricity savings. This advantage has been mentioned by a significant number of reviewers, highlighting the financial value that VMware ESXi brings to their organizations.

Support for Various Operating Systems: The support for various operating systems, including Windows and Unix, is considered a significant advantage by users. This feature enables them to host a wide range of applications on VMware ESXi. Multiple reviewers have specifically mentioned this pro, appreciating the flexibility it provides in terms of application deployment and compatibility.

Confusing User Interface: Many users have expressed frustration with the confusing and non-intuitive user interface of VMware ESXi. This has made it challenging for them to perform tasks efficiently, causing unnecessary delays and difficulties in managing their virtual environments.

Stability Issues: Several users have encountered stability issues with VMware ESXi's hypervisor. These issues have resulted in instances of corruption, leading to the need for reinstallations. The instability not only disrupts operations but also poses potential risks to data integrity and system reliability.

High Pricing and Complexity: The pricing of VMware products is often considered a barrier, particularly for smaller businesses. Many users find the deployment process complex and excessive for their needs, requiring significant time and resources to set up properly. This can be overwhelming, especially for organizations with limited IT expertise or budget constraints.

Attribute Ratings

Reviews

(101-125 of 127)
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John Van Lieshout | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Incentivized
  • You can manage all of your servers through one pane of glass.
  • High availability if you are using clusters.
  • Using templates to turn up servers takes about 5 minutes.
  • I would like it if the old client was still used. The web interface is nice, but the client worked better.
August 09, 2018

VMware Review

Score 8 out of 10
Vetted Review
Verified User
Incentivized
  • Allows system administrators to manage multiple hosts via one interface.
  • Perform multiple management tasks
  • Provides excellent memory management
  • Learning curve for support staff
  • live migration of hosts supporting realtime protocols
  • some maintenance requires downtime
Benjamin Hale | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Incentivized
  • VMware ESXi does a great job of getting multiple VMs setup quickly. The interface is intuitive and simple to use.
  • ESXi is a stable platform where mission critical VMs can run without concern.
  • ESXi is free. Really, it's free.
  • The management software is PC only, and does not seem to work with Wine for Linux or MacOS.
  • No on server interface to start/monitor/or reset machines.
  • Free license limits it to physical 2 CPU's.
Score 9 out of 10
Vetted Review
Verified User
Incentivized
  • Support of so many operating systems including various Windows and Unix, including many variations.
  • API PowerCLI scripting can help automated enterprise tasks to scale
  • Virtualizing physical servers provides much higher ROI compared to non-virtualized servers running a single OS
  • ESXi loads in ram on the server & it's small so the hypervisor uses very little of the hosts resources
  • The client has been the most common complaint about ESXi. It took 4 years to complete the web client and as soon as it was finished, they announced it would be replaced by the HTML client. frustratingly, the html client is incomplete which puts users in the same predicament as the previous 4 years.
  • Converter could be better integrated into ESXi (client) which would make creating VMs (p2v) much easier and would also prompt VMware to continue to update and improve converter (which has not had many improvements or updates since being released.
  • Maintenance mode should be much quicker when ESXi is used with vSAN.
CHRIS ROGERS | TrustRadius Reviewer
Score 8 out of 10
Vetted Review
Verified User
Incentivized
  • IT admin has complete control over these VMs through ESXi as well as being able to release a new VM if the prior VM system has any issue, this saves hundreds of hours for our admins.
  • Using ESXi together with VCenter is a great platform for maintaining the VMs, virtual networks, building datacenters, and tracking what is going on with our VMs.
  • ESXi that I had set up as a lab to learn from and to teach others off of saved our entire network from a serious hack out of China. When I set up this ESXi as a learning platform I set it in a way that it was the main point of our network (by accident) this accident stopped a brute force attack that was done through a 3 day weekend with over thousands of attempts to hack into. They only got into a BS VM that was set for learning. This saved us a lot of money and embarrassment.
  • Better way of teaching, make ESXI easier to learn to use
  • Configuration need to be a bit easier to understand
  • VMware needs to do something about the learning costs
Philip D | TrustRadius Reviewer
Score 9 out of 10
Vetted Review
Verified User
Incentivized
  • Keeps students' work segmented by using administration and VLANs.
  • An entire infrastructure can be built per the students' needs.
  • Multiple VMs can be used at the same time eliminating the downfalls of VMware Workstation.
  • There is a converter tool to switch from VM workstation to Virtual Center Stack. VMs can be transposed across the system.
  • When the Virtual Center Stack goes down then all students are affected by zero production.
  • When a lot of VMs are spun up at the same time it slows down operations.
  • ESXi attempts to provision VMs by moving them, but other tools like Turbonomic don't show the action taking place.
Score 10 out of 10
Vetted Review
Verified User
  • Virtual Hardware & Drivers for a very stable environment, low overhead, fast.
  • Peace of mind backups and recovery.
  • Maximize host resource usage, reduce physical footprint.
  • If you don't monitor VM host hardware usage, too many virtual guests can overload your hosts and slow down all virtual guests running on that server.
  • A little costly to start up, recommended multiple hosts, shared storage for recovery in case of server failure/maintenance.
  • You won't want to go back to physical.
Ben Liebowitz | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Incentivized
  • VMware ESXi is number one in server virtualization for a reason. They have been doing it for a very long time and do it well!
  • The ability to migrate workloads between hosts or even across different vCenters with no downtime is amazing.
  • Being able to virtualize the storage with vSAN and networking with VDS switches or NSX is amazing!
  • As vSphere has been my primary area of focus for the last 6 of the 10 years I've been using it, I really don't see problem areas anymore. The product has grown and continues to grow!
  • Learning the entire VMware product family is not an easy thing to do without training. I recommend setting up a lab at home to learn. Look into the VMware User Group's VMUG Advantage program for licenses for a home lab.
Score 8 out of 10
Vetted Review
Verified User
Incentivized
  • VMware allows us to save time by installing servers much quicker than before, through the use of templates.
  • VMware vCenter controls all aspects of our server environment through one console and provides detailed hardware information.
  • The ability to move virtual servers from one host to another in a matter of minutes, which allows us to install server upgrades with no downtime.
  • Licensing costs are high, and are done by CPU, rather than per server host. As a result, this can add up pretty quickly with a large server environment.
  • Learning curve may be higher for those people that have not used a virtual platform.
  • Some applications have reduced performance in a virtual environment, and run better on physical hardware.
Score 10 out of 10
Vetted Review
Verified User
Incentivized
  • Allows our organization to spin up needed servers in a short time based upon pre-staged templates.
  • Make for simplified updates on hosts with migration features.
  • Space, Power, and cooling requirements have been dramatically reduced because we have been able to remove older servers and replaced with fewer more efficient server hosts.
  • Would like all the functions including updating be all in one client instead requiring the fat client for Update Manger.
  • Web client is still a little slow.
Colby Shores | TrustRadius Reviewer
Score 7 out of 10
Vetted Review
Verified User
Incentivized
  • Virtualization allows us to create machines that handle specific tasks rather than a bare metal OS that uses the entire hardware; on bare metal, an admin has to use the machine to handle multiple tasks which is confusing to administrate.
  • VMware is fantastic at migrating systems between hosts. This is important to distribute load and for consideration in case of hardware failure.
  • VMware makes automation a snap, we currently use puppet & kickstart for our automation software. Virtualization allows us to be agile in creating systems and destroying them. Before VMware we had to provision machines by hand which is costly in labor costs.
  • VMware has some exciting verticals that integrate well with its hypervisor, VSan comes to mind which helped us address our need for resiliency in case of a hardware fault.
  • VMWare ESXi 5.0 introduced a Adobe Flash based web interface as it's primary way of interfacing with the hypervisor and it was near unusable when it first launched; sluggish and buggy. VMWare ESXi 6 is a vast improvement over 5.0, however it is still very sluggish and buggy(especially when logging in to the interface). Another thing that concerns me as a Linux DevOps engineer, since it is using Flash, the version of Flash it requires is not even supported on Linux Chrome anymore with no future upgrade path!
  • VMware really needs to scrap the entire code base for the web interface, its an abomination and rebuild it in HTML5. This is the primary reason why I give VMWare ESXi a 7.
  • VMWare ESXi's verticals are also one of its faults. Since their products are completely interoperable with each other, it makes it difficult to switch to another platform in the future. Furthermore, some of the other compelling open source solutions such as Ceph(as opposed to VSan) are unsupported as a back end for VMWare.
  • We have servers between Intel and AMD, there is an artificial limitation VMWare has imposed that prohibits live migration between VMWare hosts between different CPU types.
  • VMWare ESXi us unable to add additional CPU or memory to live systems while other competing hypervisors are able to.
May 27, 2016

VMware ESXi rocks

Score 7 out of 10
Vetted Review
Verified User
Incentivized
  • It efficiently manages cpu and memory resources on a host among dozens of virtual machines. It also provide very efficient and reliable disk I/O
  • It automates the build out of servers, saving hours over racking and building a physical server, and enabling consistent images on every server..
  • It facilitates quick and easy snapshots of servers runtime state in order to test patches or application updates and quickly roll back in the event of failures.
  • vCenter Virtual appliance is klunky and doesn't respond quickly.
  • It's database can fill up its partition and crash the server unexpectedly, resulting in an unstable and unmanageable ESXi environment
  • The vCenter web interface is not very useful and is missing several critical features, making the vim client essential for day to day use.
Matthew Michaels | TrustRadius Reviewer
Score 9 out of 10
Vetted Review
Verified User
Incentivized
  • Stable Platform
  • Simple to Operate
  • Advanced Capabilities (Backup, Redundancy, Etc.)
  • Licensing could always be less expensive.
  • More capabilities within GUI management. Much requires CLI to perform.
  • Notification of security updates. You don't always know you need them.
May 13, 2016

ESXi in a Nutshell

Score 10 out of 10
Vetted Review
Verified User
Incentivized
  • Live migrations of running VMs between hosts to limit downtime
  • Low performance impact from virtualization layer on running VMs
  • Management tools/vCenter make managing multiple VMs easy
  • Guest OS support
  • Cost to get all the features you want, e.g. Live Migration
  • Fat client required to manage individual hosts (getting better with some web consoles currently in development by VMware Labs)
  • Not as robust without a vCenter implementation
Alan Matson, CCNA:S, MCP | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Incentivized
  • Very easy server creation and administration
  • Ability to fine tune the virtual machines and virtual hardware
  • Central managed with VCenter license
  • Installs on most server hardware including those 15 years old
  • Some of the licensing is very expensive and support costs are too much for smaller businesses
  • It would be nice to have some features licensed independently such as a web based vsphere without having to buy all of VCenter
April 13, 2016

VMware, it just works

Score 7 out of 10
Vetted Review
Verified User
Incentivized
  • It did a good job hosting our SQL Servers and we didn't see any real difference between servers directly on the hardware and virtualized.
  • It made it very easy to move servers between farms and/or servers for load balancing.
  • Early versions demonstrated multiple problems which precluded using it due to performance issues but they've all been overcome so be sure you're on the lastest VMware offerings.
Giovanni Myles | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Incentivized
  • The ability to set DRS rules to isolate workloads. We run a clustered SQL environment. vMotion allows VMs to migrate across the servers seamlessly to load balancing across hypervisors. The rules we are able to put in place ensures that at no point with both nodes of the cluster reside on the same host in case of hardware failure.
  • The ability to increase memory on the fly should a VM need it. You don't always have the luxury of taking a production system offline to increase its resources.
  • Product Portfolio... From ESXi to VDI to SRM, there are a number of productions that can help you achieve your technology goals with regards to virtualization.
  • Sometimes error messages can be vague.
  • I'm versed up to ESXi 5.5 so some of my gripes may be resolved with 6.0.
  • I really enjoyed the client and I'm not a fan of the web client. Thats more so a preference than an issue.
Score 10 out of 10
Vetted Review
Verified User
Incentivized
  • Better uptime
  • Easier scheduled maintenance windows when an outage is needed
  • Consolidation of server hardware
  • Flexibility
  • License Costs
  • Better email notification support of host hardware usage or failure
  • Better email notification support of guest OSE disk usage / system resources / thresholds
Score 10 out of 10
Vetted Review
Verified User
Incentivized
  • Easy management of servers. You have full access to all server features from the web console or GUI.
  • With proper licensing, it is a great tool for high availability computing. It allows you to move servers across multiple pieces of hardware with little to no downtime.
  • Easy setup. The installation is very straight forward and small. You can even run it off an SD card in the server leaving more disk space for your data stores.
  • Licensing can be expensive, but they do offer cheaper versions.
  • I do not like that they are pushing the management features to the Web based console. I have been using the GUI for so long that it is a hard transition for me.
  • I have had multiple VCenter updates fail. At this point it is easy to deploy a new VCenter appliance than to upgrade an existing one.
Kevin Belonzi | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Incentivized
  • Provides central administration and has amazing stability. You can manage entire data centers from one VCenter interface rather than physically having to manage hardware.
  • Allows for shared resources and shared management throughout. Several beefy hardware servers can act as hosts where many smaller servers (vm's) can share its resources.
  • Cuts down costs associated with physical hardware needs.
  • The VSphere Web Client. Due to it being a web based client, there are still bugs with browsers as well as issues with response times and slowness when manipulating and completing tasks.
  • vCenter HA. This is supposed to be an added feature for the next release of ESXi. However, up to this point, it has not been a plausible option and could really be used in large environments with multiple vCenter environments.
  • Support. There have been multiple cases where there were bugs that VMware support did not have fixes.
Ethan Tran | TrustRadius Reviewer
Score 8 out of 10
Vetted Review
Verified User
Incentivized
  • GUI is very easy to use. Learning curve is low.
  • This software can be deployed for many nodes through puppet.
  • The ability to do snapshot restores quickly is great compared with ovirt.
  • To utilize vmware esxi fully, you need to couple it with paid software (vcenter).
  • Not easy to automate the deployment this software on many nodes unless you purchase vcenter or puppet.
  • No ability for DRS unless you buy vcenter.
January 13, 2016

VMware Rocks!

Score 10 out of 10
Vetted Review
Verified User
  • Cost effective utilization of compute.
  • Ability to move workloads around easily.
  • Automated and scripted deployments of VMs.
  • Some of the reporting tools are difficult to use and [I] would love to see more pre-canned options in the VRealize suite.
  • Would love to see the ability to have redundant Vcenters.
  • Would like to see them move a little quicker with the private cloud options.
October 16, 2015

ESXi review

Score 10 out of 10
Vetted Review
Verified User
Incentivized
  • It does virtualization well. Management is easy and simple.
  • HA/Failover is simple
  • I don't have any significant ideas for improvement suggestions.
October 14, 2015

VMware ROCKS

Score 10 out of 10
Vetted Review
Verified User
Incentivized
  • Hardware utilization for virtual machines
  • Low hypervisor requirements
  • Free product (ESXI)
  • Easy to administer
  • Move back away from web administration
  • Make ESXi easier to patch without the patch management add in in vCenter.
  • Implement a mid point between ESXi (free) and ESXi with vCenter server.
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